3Com SuperStack 3 NBX Administrator's Manual page 305

5 To modify the name of the board, enter a new name in the Board Name
field. You can use alphanumeric characters, dashes, and underscores. The
maximum name length is 30 characters.
6 To change the type of card, in the Card Type field, select either T1 (for T1
DS1 protocol) or ISDN PRI (for T1 ISDN PRI).
7 Click OK.
Modifying a T1 Span
To modify a span:
1 Return to the Digital Line Cards tab.
2 From the Select Device Type pull-down list, select either T1 Span List
(for T1 DS1) or ISDN PRI Span List (for T1 ISDN PRI).
3 Click Apply.
4 Select the span you want to modify from the Span List.
5 Click Modify.
The dialog box that appears depends on which span list you select.
Figure 126 shows the T1 DS1 Modify Span dialog box.
Figure 127 shows the ISDN PRI Modify Span dialog box.
Figure 126 Modify Span Dialog Box — T1 DS1
Configuring and Managing T1 Digital Line Cards 305